Device for operating door-bolts.



B. P. FLORCKEN.

DEVICE FOR OPERATDIG DOOR BOLTS.

APPLICATION FILED AUG. 21, 1914.

1,1 33,9, Patented Mar. 30, 1915.

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E-F: imam/ sq.

B. F. PLOROKEN.

DEVICE FOR OPERATING DOOR. BOLTS APPLICATION FILED AUG. 21, 1914.

1,1 33,9, Patented Mar. 30, 1915.

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EMIL F. FLORCKEN, OF LOS ANGELES, CALIFORNIA.

DEVICE FOR OPERATING DOOR-BOLTS.

Specification of Letters Patent.

llatont ml Mar. 30, 1915.

Application filed August 21, 1914. Serial N 0. 857.900.

To all 'w/z out it may concern Be it known that I, EMIL F. FLORCKEN, acitizen of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, have invented certain new anduseful Improvements in Devices for Operating Door-Bolts; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to door bolts and devices for operating the same,and one of the principalobjects of the invention is to provide reliableand ellicient means for operating two or more bolts simultaneously forfastening and unfast'ening a plurality of doors upon the inside of abathroom or toilet.

In many modern houses, and more particularly in bungalows, the lavatory,bathroom or toilet is provided with two or more doors leading into thesame from difierent sleeping apartments and from a hall connecting theapartments, and it is usually the custom for a person entering thelavatory or toilet to look all the doors leading into it behind him, buthe generally unlocks only the door through which he passes out, givingrise to much annoyance.

It isthe principal purpose of this invention to provide means wherebythe looking or unlocking of one of the doors will operate all the boltsfor all the doors.

In the accompanying drawing :F igure 1 is a view in elevation of twodoors and the floor under the doors and the door posts at one side ofthe doors being shown in section to illustrate the invention, Fig. 2 isa sectional View taken through the bolt casings and through the floorand showing the mechanism for operating the two bolts simultaneously.

While only two bolts and mechanisms for operating the same are shown inthe accompanying drawings, it will be readily understood that any numberof bolts may be operated by the same mechanism when duplicated.

In the accompanying drawing, the numeral 1 designates a casing adaptedto be placed in the door frame or post at a point convenient to thereach of the person. The casing 1 is provided with a sprocket wheeljournaled in the front and rear sides of the case. and forum-d on orconnected to the shaft of tlw sprocket wheel is a pinion 3 which engagesthe teeth 1 formed on a bolt 5. 'lhe bolt 5 is mounted in the oppositesides of the casing 1, and 6 is a hole in the door a to receive the endof the bolt. Upon the shaft 7 of the sprocket wheel and pinion is a knobor handle 8 disposed outside the door post 9 and inside the lavator ortoilet but not on the outside so that the person inside the lavatorv ortoilet can bolt or unbolt the doors. Extending around the sprocket wheel2 is a sprocket chain 10 and connected to the lower ends of the sprocketchain 10 are belts 11 and 12. The belt 11 extends through a hole 13 inthe floor l4 and passes around a pulley 15 journaled under the floor andsaid belt 11 extends across to another door and passes around a pulley16 and leads up througlra hole 17 in the floor to a drive chain 18 andinto a casing containing exactly the same mechanism referred tohereinbefore. The belt 12 is connected to the opposite end of the chain10 and passes over a pulley 19 and crosses the belt 11 at 20 and extendsaround a pulley 21 and up to the opposite end of the chain 18 where itis connected in any suitable manner.

From the foregoing it will be obvious that any person entering the doora and operating the knob or handle 8 to lock the door a will alsooperate the bolt for the door I), and when the person passes out throughthe door and withdraws the bolt at that door, the bolt of the other dooror doors is also withdrawn leaving all the doors unlocked.

Slight changes may be made in the details of construction withoutdeparting from the spirit and scope of the invention as defined in theclaims.

What is claimed is 1. A bolt operating device comprising a plurality ofcasings, a sprocket wheel mounted in each casing, a pinion connected tothe shaft of the sprocket wheel, hand operating devices for each of theshafts, a bolt mounted to slide in the casing and to engage the teeth ofthe pinion and connections between the sprocket wheels for simultaneousoperation of a plurality of bolts.

2. A bolt operating device for a plurality of bolts comprising a casingfor each device, a sliding bolt mounted in each ofsaid casings, a pinionconnected to a sprocket wheel in said casings, means for operating saidpinion and sprocket wheel simultaneously, said bolts each having aplurality of teeth thereon to be engaged by the pinion, chains passingover the sprocket Wheels, belts connected to said chains and extendingover pulleys and crossing in the center so that each bolt when operatedwill operate the other in the same manner.

3. A bolt operating mechanism comprising a plurality of casing's'mountedin the door posts of a plurality of doors, s'aid casings each containinga sprocket wheel and' pinion, a hand operated device connected to theshaft of the sprocket wheel and pinion, a bolt mounted in each casingand provided with teeth to engage the teeth of the pinion, chainsextendingover each of the sprocket wheels, and connections between saidchains for simultaneously operating a plurality of bolts, when one ofsaid bolts is operated.

4. A device for operating a plurality of bolts comprising a casing,a'sprocket wheel in said casing, a pinion connected to the sprocketwheel, a shaft on which the sprocket wheel and pinion are journaled, ahand-hold on the inside end of said shaft, a bolt provided with teeth tobe engaged by the teeth of the pinion, and means for operating aplurality of said bolts simultaneously.

\ In testimony whereof I afiix my signa ture in presence of twoWitnesses.

EMIL F. FLORCKEN.

Witnesses:

R. B. SUMNER, JOHN H. CRUM.

